diff --git a/dev-lang/rust/Manifest b/dev-lang/rust/Manifest
index fb55990..9219af8 100644
--- a/dev-lang/rust/Manifest
+++ b/dev-lang/rust/Manifest
@@ -12,6 +12,7 @@ DIST rustc-1.39.0-src.tar.xz 96495140 BLAKE2B 6df6bf0c3b38c28753713acdc477ea6929
 DIST rustc-1.40.0-src.tar.xz 92306352 BLAKE2B 762b9592414e5c816540f6fd37d07b3b0ffe97a151968cc8ae77be2fda03a6d66905192985edc65055cc7811dbd90faa2b2c056481f72161c6f7ccbcce13671a SHA512 b5ac3079acefb62d3c985b77f624d7fb68de23a59396fed9ccb292db61641c064f3146ee54d3cf59067b17ebfaadd14a6b2b466def60316bb5b13ba3aef01e1f
 DIST rustc-1.41.1-src.tar.xz 93754192 BLAKE2B 235ece650d0c75e1c8700ce73d3811997cd0d827b850a6dd435a269f3f86d85849d54755ea346c5ddcbe0d1224836fd78213f6abeab4a9a8c4c3e2d8a05ff7b4 SHA512 ef33565c9cf4e27ca279072bfed3301e0276c09407d49727640746ba78d289de285278d64b1cce8708461fd6c97c7ab2ea8d56e7a4c4a23b2e66e2d164c35fc9
 DIST rustc-1.42.0-src.tar.xz 94186592 BLAKE2B 82298ef3da44188546bb945bcbfc1af630e6a4466b643667da08a04a33c6417afd68fc86302bdd22ab36c208fdb13cbc479e762d1217c05507bbfeb13bfbef7e SHA512 589bfdc92deedd33b8ea0df7f7c64c2a9a085fbea64936eff92f81e812309c060ed7a7adc96f6010d7adf62a68434a230da0f6c5b3540df4e0a5c6de05a31b16
+DIST rustc-1.43.1-src.tar.xz 94405276 BLAKE2B 8679fe937abc4f758f3e35c2542d57cc1ad0bb72111597881873b30779b6e7b6711baa52493cb5ff954bf9cd31367b36db4e4fc8676635026059197a33659048 SHA512 24bb01237b1f3f5412109290bb4406b9742cf8956162f4090a98ed3a59a6e2e8dda399452bec1c93c8afdcf5effd98e4825e7f218238e0e88735c1ff4a5b385f
 EBUILD rust-1.29.0.ebuild 2254 BLAKE2B b6d171e2c93bb9296b02f52e11eb26dc5b759a57a9333b15c2cdf195f3619b54140c9338f05895587c7a5f121d3e4fdffa3feedf81774da453f693264a165dec SHA512 74beda115c43d042e5d6020e65d680874ebf6c3c60b33beb23e3a4819b43ae22d363128429f0199b42714d2987514022613b933406f08436bc5be297c402c30b
 EBUILD rust-1.30.1.ebuild 7597 BLAKE2B e8caabdff29bc13354ea9ae750e44b47bd7d8b595439dbfac0f4e902b163525cbbea5613cd40d07a894906ceaeb84b1ba0cded08f502fe3865405fb88468f9b1 SHA512 78987f43bff1cc15f10df2ec6249d0fb475815717ed4e39c5efcee8d3b93a0c8443d6acd5add751361de5a49ae7dcb9b241e03db55a5919d46928f03304d6fa1
 EBUILD rust-1.31.1.ebuild 7597 BLAKE2B e8caabdff29bc13354ea9ae750e44b47bd7d8b595439dbfac0f4e902b163525cbbea5613cd40d07a894906ceaeb84b1ba0cded08f502fe3865405fb88468f9b1 SHA512 78987f43bff1cc15f10df2ec6249d0fb475815717ed4e39c5efcee8d3b93a0c8443d6acd5add751361de5a49ae7dcb9b241e03db55a5919d46928f03304d6fa1
@@ -26,3 +27,4 @@ EBUILD rust-1.39.0.ebuild 7670 BLAKE2B 43bb55369449f2b2548fbc58d974299743fcec4aa
 EBUILD rust-1.40.0.ebuild 7670 BLAKE2B 43bb55369449f2b2548fbc58d974299743fcec4aa1efb3c8c449c6ea564963dc5079fccd81274285833d441627edaa5679c38beb3ae4dd5763286a358183747a SHA512 64289d3e04d1f4885e02a751ecee44d001887c34be2298649f6834d422c3d31096f60e1253fc183e7374aa10d2261ced31850ef9a0448a5ec51dbd66fbad7dc2
 EBUILD rust-1.41.1.ebuild 7670 BLAKE2B 43bb55369449f2b2548fbc58d974299743fcec4aa1efb3c8c449c6ea564963dc5079fccd81274285833d441627edaa5679c38beb3ae4dd5763286a358183747a SHA512 64289d3e04d1f4885e02a751ecee44d001887c34be2298649f6834d422c3d31096f60e1253fc183e7374aa10d2261ced31850ef9a0448a5ec51dbd66fbad7dc2
 EBUILD rust-1.42.0.ebuild 7670 BLAKE2B 43bb55369449f2b2548fbc58d974299743fcec4aa1efb3c8c449c6ea564963dc5079fccd81274285833d441627edaa5679c38beb3ae4dd5763286a358183747a SHA512 64289d3e04d1f4885e02a751ecee44d001887c34be2298649f6834d422c3d31096f60e1253fc183e7374aa10d2261ced31850ef9a0448a5ec51dbd66fbad7dc2
+EBUILD rust-1.43.1.ebuild 7670 BLAKE2B 43bb55369449f2b2548fbc58d974299743fcec4aa1efb3c8c449c6ea564963dc5079fccd81274285833d441627edaa5679c38beb3ae4dd5763286a358183747a SHA512 64289d3e04d1f4885e02a751ecee44d001887c34be2298649f6834d422c3d31096f60e1253fc183e7374aa10d2261ced31850ef9a0448a5ec51dbd66fbad7dc2
diff --git a/dev-lang/rust/rust-1.43.1.ebuild b/dev-lang/rust/rust-1.43.1.ebuild
new file mode 100644
index 0000000..e4d353e
--- /dev/null
+++ b/dev-lang/rust/rust-1.43.1.ebuild
@@ -0,0 +1,289 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+PYTHON_COMPAT=( python2_7 python3_{6,7} )
+
+inherit bash-completion-r1 check-reqs estack flag-o-matic llvm multiprocessing multilib-build python-any-r1 rust-toolchain toolchain-funcs
+
+if [[ ${PV} = *beta* ]]; then
+	betaver=${PV//*beta}
+	BETA_SNAPSHOT="${betaver:0:4}-${betaver:4:2}-${betaver:6:2}"
+	MY_P="rustc-beta"
+	SLOT="beta/${PV}"
+	SRC="${BETA_SNAPSHOT}/rustc-beta-src.tar.xz"
+else
+	ABI_VER="$(ver_cut 1-2)"
+	SLOT="stable/${ABI_VER}"
+	MY_P="rustc-${PV}"
+	SRC="${MY_P}-src.tar.xz"
+	KEYWORDS="amd64 ~arm ~arm64 ~ppc64 ~x86"
+fi
+
+DESCRIPTION="Systems programming language from Mozilla"
+HOMEPAGE="https://www.rust-lang.org/"
+
+SRC_URI="https://static.rust-lang.org/dist/${SRC} -> rustc-${PV}-src.tar.xz"
+
+ALL_LLVM_TARGETS=( AArch64 AMDGPU ARM BPF Hexagon Lanai Mips MSP430
+	NVPTX PowerPC RISCV Sparc SystemZ WebAssembly X86 XCore )
+ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
+LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/?}
+
+LICENSE="|| ( MIT Apache-2.0 ) BSD-1 BSD-2 BSD-4 UoI-NCSA"
+
+IUSE="clippy cpu_flags_x86_sse2 debug doc libressl rls rustfmt ${ALL_LLVM_TARGETS[*]}"
+
+# Please keep the LLVM dependency block separate. Since LLVM is slotted,
+# we need to *really* make sure we're not pulling more than one slot
+# simultaneously.
+
+# How to use it:
+# 1. List all the working slots (with min versions) in ||, newest first.
+# 2. Update the := to specify *max* version, e.g. < 10.
+# 3. Specify LLVM_MAX_SLOT, e.g. 9.
+LLVM_DEPEND="
+	|| (
+		sys-devel/llvm:9[llvm_targets_WebAssembly?]
+	)
+	<sys-devel/llvm-10:=
+"
+LLVM_MAX_SLOT=9
+
+BOOTSTRAP_DEPEND=">=dev-lang/rust-1.$(($(ver_cut 2) - 1))"
+
+COMMON_DEPEND="
+	sys-libs/zlib
+	!libressl? ( dev-libs/openssl:0= )
+	libressl? ( dev-libs/libressl:0= )
+	net-libs/libssh2
+	net-libs/http-parser:=
+	net-misc/curl[ssl]
+"
+
+DEPEND="${COMMON_DEPEND}
+	${PYTHON_DEPS}
+	|| (
+		>=sys-devel/gcc-4.7
+		>=sys-devel/clang-3.5
+	)
+	${BOOTSTRAP_DEPEND}
+"
+
+RDEPEND="${COMMON_DEPEND}
+	>=app-eselect/eselect-rust-20190311
+"
+
+REQUIRED_USE="|| ( ${ALL_LLVM_TARGETS[*]} )
+	x86? ( cpu_flags_x86_sse2 )
+"
+
+QA_FLAGS_IGNORED="
+	usr/bin/*-${PV}
+	usr/lib*/lib*.so
+	usr/lib/rustlib/*/codegen-backends/librustc_codegen_llvm-llvm.so
+	usr/lib/rustlib/*/lib/lib*.so
+"
+
+QA_SONAME="usr/lib.*/librustc_macros.*.so"
+
+S="${WORKDIR}/${MY_P}-src"
+
+toml_usex() {
+	usex "$1" true false
+}
+
+pre_build_checks() {
+	CHECKREQS_DISK_BUILD="9G"
+	eshopts_push -s extglob
+	if is-flagq '-g?(gdb)?([1-9])'; then
+		CHECKREQS_DISK_BUILD="14G"
+	fi
+	eshopts_pop
+	check-reqs_pkg_setup
+}
+
+pkg_pretend() {
+	pre_build_checks
+}
+
+pkg_setup() {
+	pre_build_checks
+	python-any-r1_pkg_setup
+}
+
+src_prepare() {
+	default
+}
+
+src_configure() {
+	local rust_target="" rust_targets="" arch_cflags
+
+	# Collect rust target names to compile standard libs for all ABIs.
+	for v in $(multilib_get_enabled_abi_pairs); do
+		rust_targets="${rust_targets},\"$(rust_abi $(get_abi_CHOST ${v##*.}))\""
+	done
+	rust_targets="${rust_targets#,}"
+
+	local extended="true" tools="\"cargo\","
+	if use clippy; then
+		tools="\"clippy\",$tools"
+	fi
+	if use rls; then
+		tools="\"rls\",\"analysis\",\"src\",$tools"
+	fi
+	if use rustfmt; then
+		tools="\"rustfmt\",$tools"
+	fi
+
+	local rust_stage0_root
+	rust_stage0_root="$(rustc --print sysroot)"
+
+	rust_target="$(rust_abi)"
+
+	cat <<- EOF > "${S}"/config.toml
+		[llvm]
+		optimize = $(toml_usex !debug)
+		release-debuginfo = $(toml_usex debug)
+		assertions = $(toml_usex debug)
+		targets = "${LLVM_TARGETS// /;}"
+		experimental-targets = ""
+		[build]
+		build = "${rust_target}"
+		host = ["${rust_target}"]
+		target = [${rust_targets}]
+		cargo = "${rust_stage0_root}/bin/cargo"
+		rustc = "${rust_stage0_root}/bin/rustc"
+		docs = $(toml_usex doc)
+		compiler-docs = $(toml_usex doc)
+		submodules = false
+		python = "${EPYTHON}"
+		locked-deps = true
+		vendor = true
+		extended = ${extended}
+		tools = [${tools}]
+		verbose = 2
+		[install]
+		prefix = "${EPREFIX}/usr"
+		libdir = "lib"
+		docdir = "share/doc/${PF}"
+		mandir = "share/man"
+		[rust]
+		optimize = $(toml_usex !debug)
+		debug = $(toml_usex debug)
+		debug-assertions = $(toml_usex debug)
+		default-linker = "$(tc-getCC)"
+		channel = "stable"
+		rpath = false
+		lld = false
+		[dist]
+		src-tarball = false
+	EOF
+
+	for v in $(multilib_get_enabled_abi_pairs); do
+		rust_target=$(rust_abi $(get_abi_CHOST ${v##*.}))
+		arch_cflags="$(get_abi_CFLAGS ${v##*.})"
+
+		cat <<- EOF >> "${S}"/config.env
+			CFLAGS_${rust_target}=${arch_cflags}
+		EOF
+
+		cat <<- EOF >> "${S}"/config.toml
+			[target.${rust_target}]
+			cc = "$(tc-getBUILD_CC)"
+			cxx = "$(tc-getBUILD_CXX)"
+			linker = "$(tc-getCC)"
+			ar = "$(tc-getAR)"
+		EOF
+	done
+}
+
+src_compile() {
+	env $(cat "${S}"/config.env)\
+		"${EPYTHON}" ./x.py build -vv --config="${S}"/config.toml -j$(makeopts_jobs) \
+		--exclude src/tools/miri || die # https://github.com/rust-lang/rust/issues/52305
+}
+
+src_install() {
+	env DESTDIR="${D}" "${EPYTHON}" ./x.py install -vv --config="${S}"/config.toml \
+	--exclude src/tools/miri || die
+
+	# bug #689562, #689160
+	rm "${D}/etc/bash_completion.d/cargo" || die
+	rmdir "${D}"/etc{/bash_completion.d,} || die
+	dobashcomp build/tmp/dist/cargo-image/etc/bash_completion.d/cargo
+
+	mv "${ED}/usr/bin/rustc" "${ED}/usr/bin/rustc-${PV}" || die
+	mv "${ED}/usr/bin/rustdoc" "${ED}/usr/bin/rustdoc-${PV}" || die
+	mv "${ED}/usr/bin/rust-gdb" "${ED}/usr/bin/rust-gdb-${PV}" || die
+	mv "${ED}/usr/bin/rust-gdbgui" "${ED}/usr/bin/rust-gdbgui-${PV}" || die
+	mv "${ED}/usr/bin/rust-lldb" "${ED}/usr/bin/rust-lldb-${PV}" || die
+	mv "${ED}/usr/bin/cargo" "${ED}/usr/bin/cargo-${PV}" || die
+	if use clippy; then
+		mv "${ED}/usr/bin/clippy-driver" "${ED}/usr/bin/clippy-driver-${PV}" || die
+		mv "${ED}/usr/bin/cargo-clippy" "${ED}/usr/bin/cargo-clippy-${PV}" || die
+	fi
+	if use rls; then
+		mv "${ED}/usr/bin/rls" "${ED}/usr/bin/rls-${PV}" || die
+	fi
+	if use rustfmt; then
+		mv "${ED}/usr/bin/rustfmt" "${ED}/usr/bin/rustfmt-${PV}" || die
+		mv "${ED}/usr/bin/cargo-fmt" "${ED}/usr/bin/cargo-fmt-${PV}" || die
+	fi
+
+	# Move public shared libs to abi specific libdir
+	# Private and target specific libs MUST stay in /usr/lib/rustlib/${rust_target}/lib
+	if [[ $(get_libdir) != lib ]]; then
+		dodir /usr/$(get_libdir)
+		mv "${ED}/usr/lib"/*.so "${ED}/usr/$(get_libdir)/" || die
+	fi
+
+	dodoc COPYRIGHT
+
+	# note: eselect-rust adds EROOT to all paths below
+	cat <<-EOF > "${T}/provider-${P}"
+		/usr/bin/rustdoc
+		/usr/bin/rust-gdb
+		/usr/bin/rust-gdbgui
+		/usr/bin/rust-lldb
+	EOF
+	echo /usr/bin/cargo >> "${T}/provider-${P}"
+	if use clippy; then
+		echo /usr/bin/clippy-driver >> "${T}/provider-${P}"
+		echo /usr/bin/cargo-clippy >> "${T}/provider-${P}"
+	fi
+	if use rls; then
+		echo /usr/bin/rls >> "${T}/provider-${P}"
+	fi
+	if use rustfmt; then
+		echo /usr/bin/rustfmt >> "${T}/provider-${P}"
+		echo /usr/bin/cargo-fmt >> "${T}/provider-${P}"
+	fi
+	dodir /etc/env.d/rust
+	insinto /etc/env.d/rust
+	doins "${T}/provider-${P}"
+}
+
+pkg_postinst() {
+	eselect rust update --if-unset
+
+	elog "Rust installs a helper script for calling GDB and LLDB,"
+	elog "for your convenience it is installed under /usr/bin/rust-{gdb,lldb}-${PV}."
+
+	ewarn "cargo is now installed from dev-lang/rust{,-bin} instead of dev-util/cargo."
+	ewarn "This might have resulted in a dangling symlink for /usr/bin/cargo on some"
+	ewarn "systems. This can be resolved by calling 'sudo eselect rust set ${P}'."
+
+	if has_version app-editors/emacs; then
+		elog "install app-emacs/rust-mode to get emacs support for rust."
+	fi
+
+	if has_version app-editors/gvim || has_version app-editors/vim; then
+		elog "install app-vim/rust-vim to get vim support for rust."
+	fi
+}
+
+pkg_postrm() {
+	eselect rust cleanup
+}